WO2014136231A1 - 電子回路部品装着機 - Google Patents

電子回路部品装着機 Download PDF

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Publication number
WO2014136231A1
WO2014136231A1 PCT/JP2013/056179 JP2013056179W WO2014136231A1 WO 2014136231 A1 WO2014136231 A1 WO 2014136231A1 JP 2013056179 W JP2013056179 W JP 2013056179W WO 2014136231 A1 WO2014136231 A1 WO 2014136231A1
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WO
WIPO (PCT)
Prior art keywords
rotor
component
positive pressure
pressure source
suction nozzle
Prior art date
Application number
PCT/JP2013/056179
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
瑞穂 野沢
Original Assignee
富士機械製造株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 富士機械製造株式会社 filed Critical 富士機械製造株式会社
Priority to PCT/JP2013/056179 priority Critical patent/WO2014136231A1/ja
Priority to CN201380074241.4A priority patent/CN105027698B/zh
Priority to EP13876881.7A priority patent/EP2966951B1/de
Priority to JP2015504061A priority patent/JP6028084B2/ja
Publication of WO2014136231A1 publication Critical patent/WO2014136231A1/ja

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    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K13/00—Apparatus or processes specially adapted for manufacturing or adjusting assemblages of electric components
    • H05K13/04—Mounting of components, e.g. of leadless components
    • H05K13/0404—Pick-and-place heads or apparatus, e.g. with jaws
    • H05K13/0408—Incorporating a pick-up tool
    • H05K13/0409—Sucking devices
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K13/00—Apparatus or processes specially adapted for manufacturing or adjusting assemblages of electric components
    • H05K13/04—Mounting of components, e.g. of leadless components
    • H05K13/0404—Pick-and-place heads or apparatus, e.g. with jaws
    • H05K13/0408—Incorporating a pick-up tool
    • H05K13/041—Incorporating a pick-up tool having multiple pick-up tools

Definitions

  • the present invention relates to an electronic circuit component mounting machine for mounting an electronic circuit component on a circuit substrate, and in particular, a rotary mounting head including a plurality of suction nozzles and a component feeder held by a rotor is a circuit substrate holding device. It is related with the electronic circuit component mounting machine by which the reception and mounting
  • Patent Document 1 describes a rotary type mounting head including a plurality of suction nozzles held so as to be able to advance and retreat at a plurality of positions on a circumference around a rotation axis of the rotor.
  • the rotary type mounting head is moved by the mounting head moving device relative to the component supply device and the circuit board holding device, and after all the suction nozzles have received the electronic circuit components from the component supply device, they are moved to the circuit board holding device.
  • the electronic circuit component is mounted on the circuit board.
  • the plurality of suction nozzles are swung by the rotation of the rotor, and at a component receiving and mounting position that is one of the plurality of swiveling positions, the electronic circuit components are received from the component supply device and the electronic circuit components are mounted on the circuit board. I do.
  • the rotor is provided with a negative pressure control valve and a positive pressure control valve for each of the plurality of suction nozzles. These control valves are switched by a valve switching device provided at a portion corresponding to the component receiving and mounting position of the head body.
  • the present invention has been made against the background of the above circumstances, and the practicality of an electronic circuit component mounting machine including a plurality of suction nozzles and a rotary mounting head that is moved relative to a circuit substrate holding device. Improvement is an issue.
  • A a circuit substrate holding device that holds a circuit substrate
  • B a component supply device that supplies electronic circuit components
  • C a positive pressure source that supplies positive pressure
  • D A negative pressure source that supplies negative pressure
  • E (a) a rotor that can rotate around one axis; and (b) shafts at a plurality of positions on a circumference around the one axis of the rotor.
  • a plurality of suction nozzles that are held so as to be able to advance and retreat in a direction, and suck and hold electronic circuit components by negative pressure; and (c) the plurality of suctions held by the rotor by intermittently rotating the rotor.
  • a rotor rotating device for rotating the nozzles and stopping each at a predetermined rotating position; (d) a rotary mounting head including the rotor rotating device and a head body that holds the rotor; and (F) the rotary mounting.
  • a mounting head moving device for moving the head relative to the circuit substrate holding device; By controlling the mold mounting head and the mounting head moving device, the plurality of suction nozzles held by the rotor receive electronic circuit components from the component supply device, and the circuit held by the circuit base material holding device
  • the rotary type mounting head of the electronic circuit component mounting machine including the component mounting control device to be mounted on the base material, and (e) the components sequentially in a state in which the electronic circuit components housed in the component housing portion are aligned in a line
  • a component feeder as at least a part of the component supply device, which is supplied from a supply unit to one of the plurality of suction nozzles stopped at a component receiving position which is one of the predetermined swivel positions; and (f )
  • a negative pressure control valve, and (h) of the plurality of suction nozzles held by the rotor, the one swung to the vicinity of the component receiving position and the vicinity of the component mounting position is axially directed to the rotor
  • a first set angle region corresponding to one or more stop positions including the component mounting position among a plurality of stop positions to be stopped
  • the suction nozzle at the stop position corresponding to the first set angle region and the Positive pressure
  • a second set angle region that allows sufficient communication with the source and corresponds to one or more stop positions including the component receiving position
  • the problem is solved by including a nozzle that prevents communication with the positive pressure source
  • the phrase “allowing sufficient communication between the suction nozzle and the positive pressure source” does not include a slight communication, but a communication with a flow area sufficient to achieve the purpose of the communication.
  • a printed wiring board on which an electronic circuit component is not yet mounted (ii) an electronic circuit component is mounted on one surface and electrically connected to the circuit substrate, and the other surface is A printed circuit board on which electronic circuit components are not mounted, (iii) a base material on which a bare chip is mounted and constituting a substrate with a chip, (iv) a base material on which an electronic circuit component including a ball grid array is mounted, (v ) Substrates having a three-dimensional shape rather than a flat shape are included.
  • the component feeder for example, a bulk feeder, a tape feeder, a stick feeder or the like can be adopted.
  • the rotor may be rotatable about a vertical axis, or may be rotatable about an axis inclined with respect to the vertical axis.
  • the suction nozzle may be held by the rotor so as to be able to advance and retreat in a direction parallel to the rotation axis of the rotor, or may be held so as to be able to advance and retreat in an intersecting direction.
  • the position of the suction nozzle is defined as the position of its axis.
  • a rotary mounting head that includes a plurality of suction nozzles and component feeders held by a rotor and is moved relative to the circuit board holding device, one of the plurality of suction nozzles has a plurality of swiveling positions due to rotation of the rotor. And the rotary mounting head is moved with respect to the circuit board holding device so that the electronic circuit parts are placed on the circuit board mounting position. Mounting to the material is the same as the conventional rotary mounting head, but in parallel with the mounting operation, another one of the plurality of suction nozzles is swung to the component receiving position, and the electronic circuit component is transferred from the component feeder. receive.
  • the receiving operation is performed in parallel with the mounting operation of the electronic circuit component, the mounting of the electronic circuit component is efficiently performed.
  • positive pressure is supplied to the suction nozzle, and the negative pressure is positively extinguished so that the electronic circuit components are quickly released. Therefore, when the suction nozzle with the electronic circuit component mounted on the circuit substrate is moved to the component receiving position next time, the negative pressure control valve prevents the suction nozzle from communicating with the negative pressure source.
  • the positive pressure control valve In the blocking state, the positive pressure control valve is in a state where the suction nozzle can communicate with the positive pressure source, and the positive pressure source can be communicated. The valve is allowed to communicate with the negative pressure source.
  • Switching between these positive pressure control valve and negative pressure control valve in parallel with the approach of the suction nozzle to the component feeder at the component receiving position can reduce the time required to receive the component and further improve the mounting efficiency. Can be made. However, in that case, compressed air is blown out from the suction nozzle until the control valve is switched, and there is a risk that electronic circuit components supplied by the component feeder will be blown away.
  • the suction nozzle is communicated with the negative pressure source at the component receiving position, it is moved closer to the component feeder, or the communication between the suction nozzle and the positive pressure source is cut off, and the pressure in the suction nozzle is set to atmospheric pressure.
  • an electromagnetic valve that allows and blocks communication between all of the plurality of positive pressure control valves and the positive pressure source is provided, and after all the suction nozzles are equipped with electronic circuit components, By blocking communication with the pressure source and preventing positive pressure from being supplied while all the suction nozzles receive electronic circuit components, the electronic circuit components are not blown when receiving the components, and in parallel with the approach to the component feeder.
  • the suction nozzle can communicate with the negative pressure source, but suction and mounting cannot be performed in parallel.
  • a solenoid valve is provided for each of the plurality of suction nozzles so that the positive pressure source and negative pressure source of the suction nozzle can be communicated and shut off individually at any time, after mounting the component and before receiving the component.
  • the supply of positive pressure to the suction nozzle can be cut off to achieve atmospheric pressure. Accordingly, the suction nozzle can be communicated with the negative pressure source during the approach to the component feeder without blowing off the electronic circuit components, and suction and mounting can be performed in parallel.
  • the configuration of the rotary mounting head becomes complicated and the cost increases.
  • the suction nozzle if the suction nozzle is positioned at the stop position corresponding to the second set angle region as the rotor rotates, communication with the positive pressure source is prevented. Is done. While the positive pressure control valve remains in a state where the positive pressure source can be communicated, communication between the suction nozzle and the positive pressure source is blocked, and when the part is received, the suction nozzle approaches the parts feeder without positive pressure being supplied. can do. Therefore, even if the negative pressure control valve is switched from the negative pressure source communication blocking state to the negative pressure source communication enabled state while the suction nozzle is approaching the component feeder, the suction nozzle can suck the electronic circuit components without blowing them off. .
  • the suction nozzle located at the component mounting position which is the stop position corresponding to the first set angle region, is allowed to communicate with the positive pressure source, positive pressure is supplied and the electronic circuit components are released quickly.
  • the suction nozzle can be placed at the component receiving position without providing a solenoid valve for each of the plurality of suction nozzles.
  • a plurality of radial passages are formed in the rotor so as to extend radially from a central hole of the rotor to a plurality of positions corresponding to the plurality of suction nozzles.
  • a positive pressure source communicating / blocking portion is fitted to the central hole so as to be relatively rotatable, and corresponds to the first set angle region of the plurality of radial passages as the rotor rotates.
  • a notch portion that fully opens a radial passage corresponding to one or more suction nozzles in the stop position, and a radial passage corresponding to one or more suction nozzles in the stop position corresponding to the second set angle region.
  • a communication control section having a closed section to be closed; and (b) a positive pressure source communication path for communicating the notch section with the positive pressure source regardless of the rotational position of the rotor.
  • the first set angle region is set in consideration of communication between the radial passage and the notch.
  • the notch has a shape and a size that communicate with the entire opening on the central hole side of at least one radial passage in the direction around the rotation axis of the rotor and in the direction parallel to the rotation axis.
  • the communication area of the opening on the center hole side with respect to the notch gradually increases, and the entire opening is located in the notch. Further, when the radial passage is moved away from the notch with the rotation of the rotor, the communication area of the opening with respect to the notch is gradually reduced, and the whole is removed from the notch. If even a part of the corresponding radial passage starts to communicate with the notch, the suction nozzle communicates with the positive pressure source, and the suction nozzle is positive while the part of the corresponding radial passage communicates with the notch.
  • the positive pressure control valve communicates with the pressure source, but in this state, rapid positive pressure supply cannot be expected even if the suction nozzle can communicate with the suction nozzle with the positive pressure source. Therefore, the first set angle region is an angle region in which it is guaranteed that the entire opening on the central hole side of the radial passage corresponding to one or more suction nozzles at the stop position corresponding to the angle region is located in the notch.
  • the opening on the central hole side of the radial passage corresponding to one or more suction nozzles at the stop position corresponding to the angle area is completely closed by the closing portion, and the negative pressure control valve is
  • the angle region is set to ensure that the supply of the positive pressure is completely prevented.
  • the notch of the communication control unit can guarantee that the radial passage corresponding to the suction nozzle is fully open when at least one of the plurality of suction nozzles reaches the vicinity of the component mounting position.
  • the closed portion can guarantee that the radial passage corresponding to the suction nozzle is fully closed when at least one of the plurality of suction nozzles reaches the vicinity of the component receiving position. Just do it.
  • the opening on the central hole side of the radial passage corresponding to these suction nozzles may be opened or closed.
  • the notch portion of the communication control unit is positioned at least one of the plurality of suction nozzles at the component mounting position and at an upstream side in the rotation direction of the rotor from the one. More preferably, the plurality of radial passages corresponding to the one or more suction nozzles are fully opened, and the closing portion of the communication control unit includes one of the plurality of suction nozzles. A plurality of radial passages corresponding to at least one and one or more suction nozzles located upstream of the one in the rotational direction of the rotor in a state of being located at the component receiving position are fully closed. It is further desirable to be.
  • the plurality of radial passages corresponding to one suction nozzle located at the component mounting position and one or more suction nozzles located upstream in the rotational direction of the rotor are made to be fully opened.
  • the positive pressure control valve is switched in parallel with the approach of the suction nozzle to the component mounting position, it can be ensured that the positive pressure is quickly supplied to the suction nozzle.
  • FIG. 1 It is a perspective view which shows a part of electronic circuit component mounting line provided with two or more mounting modules which are the electronic circuit component mounting machines which are one Embodiment of this invention. It is a perspective view which shows the rotary type
  • FIG. 1 shows a plurality of mounting modules 10 which are electronic circuit component mounting machines according to an embodiment of the present invention. These mounting modules 10 are arranged in a row adjacent to each other on a common and integral base 12 and fixed to form a mounting line.
  • the mounting module 10 is described in detail in, for example, Japanese Patent Application Laid-Open No. 2004-104075, and a part other than the part related to the present invention will be briefly described.
  • electronic circuit components are abbreviated as components.
  • each mounting module 10 includes a module main body 18 that is a main body of a component mounting machine, a circuit board transport device 20, a circuit board holding device 22, a component supply device 24, and a rotary mounting head 26 (hereinafter referred to as a mounting head). 26, a mounting head moving device 28, a reference mark imaging device 30 (see FIG. 2), a component imaging device 32, and a module control device 34.
  • the circuit board transport device 20 includes two board conveyors 40 and 42, and a plurality of mounting modules 10 are arranged on a circuit board 44 (hereinafter abbreviated as a board 44) which is a kind of circuit base material. It is a direction parallel to the direction and transported in a horizontal direction.
  • a circuit board 44 is a general term for a printed wiring board and a printed circuit board.
  • the circuit board holding device 22 is provided in the module main body 18 for each of the two board conveyors 40 and 42. Although not shown, the circuit board holding apparatus 22 is supported on both sides parallel to the supporting direction of the board 44 and the supporting direction of the board 44.
  • a clamp member for clamping each edge is provided, and the substrate 44 is held in a posture in which the component mounting surface on which the component is mounted is horizontal.
  • the transport direction of the substrate 44 by the circuit board transport device 20 is the X-axis direction, and the X-axis direction is in a horizontal plane that is one plane parallel to the component mounting surface of the substrate 44 held by the circuit board holding device 22.
  • the component supply device 24 is configured to supply components by a plurality of tape feeders 50 serving as aligned component feeders, and is provided at a fixed position on a base 52 of the module main body 18.
  • the mounting head moving device 28 includes an X-axis direction moving device 60 and a Y-axis direction moving device 62 as shown in FIG.
  • the Y-axis direction moving device 62 includes a linear motor 64 provided across the component supply unit of the component supply device 24 and the two circuit board holding devices 22 in the module main body 18, and Y serving as a movable member serving as a movable member.
  • the shaft slide 66 is moved to an arbitrary position in the Y-axis direction.
  • the X-axis direction moving device 60 is provided on the Y-axis slide 66 and is moved in the X-axis direction with respect to the Y-axis slide 66, and two Xs serving as moving members that are movable members relative to each other in the X-axis direction.
  • Axis slides 70 and 72, and an X axis slide movement device 74 for moving the X axis slides 70 and 72 in the X axis direction (FIG. 2 shows an X axis slide movement device for moving the X axis slide 72. And).
  • the two X-axis slide moving devices include, for example, an electric motor 76 as a drive source and a feed screw mechanism 78 including a screw shaft and a nut. 70 and 72 are moved to an arbitrary position in the X-axis direction, and the X-axis slide 72 is moved to an arbitrary position in a horizontal movement plane.
  • the electric motor 76 is constituted by a servo motor with an encoder in this embodiment.
  • the servo motor is an electric rotary motor capable of accurately controlling the rotation angle, and a step motor or a linear motor may be used instead of the servo motor.
  • a ball screw mechanism is suitable as the feed screw mechanism. The same applies to other electric motors and feed screw mechanisms described below.
  • the head moving device may be a Y-axis direction moving device provided on an X-axis slide.
  • the mounting head 26 is detachably mounted on the X-axis slide 72 and is moved with respect to the circuit board holding device 22 as the X-axis slide 72 moves, and the component supply unit of the component supply apparatus 24 and the two circuit boards. It is moved to an arbitrary position in the head moving area which is a moving area straddling the holding device 22.
  • the reference mark imaging device 30 is mounted on an X-axis slide 72, moved by the mounting head moving device 28 together with the mounting head 26, and images a reference mark (not shown) provided on the substrate 44. To do.
  • the component imaging device 32 is provided with a fixed position at a portion between the circuit board transport device 20 and the component supply device 24 of the base 52, and a component that is an imaging object is provided. Take an image from below.
  • the mounting head 26 will be described. Although the mounting head 26 has not yet been disclosed, the mounting head 26 is described in detail in the specification of Japanese Patent Application No. 2011-206452 and the specification of PCT / JP2012 / 074105, each of which is filed by the present applicant. Parts other than the part will be briefly described.
  • the mounting head 26 includes a plurality of suction nozzles 90 as shown in FIG. These suction nozzles 90 are held by a rotor 92.
  • the rotor 92 includes a shaft portion 94 and a nozzle holding portion 96 as schematically shown in FIG. Both end portions of the shaft portion 94 are supported by the head main body 98 via bearings 100 and 102 so as to be rotatable in a posture in which the axis is vertical, and the rotor 92 is forward and backward around the vertical axis by the rotor rotating device 104. It can be rotated at any angle in both directions.
  • the rotor rotating device 104 uses an electric motor 106 (see FIG. 3) provided in the head main body 98 as a drive source, and the rotation of the electric motor 106 is transmitted to the rotor 92 by gears 108 and 110.
  • the nozzle holding portion 96 has a larger diameter than the shaft portion 94, and a plurality, preferably three or more, and in this embodiment, twelve nozzle holders 120 are provided, and a maximum of twelve suction nozzles 90 can be held by the rotor 92. .
  • the twelve nozzle holders 120 are arranged at a plurality of positions at an appropriate interval on one circumference around the rotation axis of the rotor 92 in the outer peripheral portion of the nozzle holding portion 96, in this embodiment, 12 at equiangular intervals.
  • the twelve suction nozzles 90 are rotated around the rotation axis of the rotor 92 by the rotor 92 being intermittently rotated by an angle equal to the arrangement angle interval of the nozzle holder 120, and set at an equal angle. Each of the swiveling positions is sequentially stopped. Further, as shown in FIG. 3, the nozzle holder 120 is biased upward by a compression coil spring 122, and a cam 124, which is a cam follower provided at the upper portion thereof, is fixed to the head main body 98. It is moved along the surface 128. Thereby, the suction nozzle 90 is raised and lowered while being swung around the rotation axis of the rotor 92.
  • the turning position with the shortest distance in the height direction is the component to the board 44.
  • the component mounting position where the mounting is performed is the longest, highest turning position, and the position 180 degrees away from the component mounting position is the component imaging position.
  • the fifth turning position in the rotation direction of the rotor 92 is the direction indicated by the arrow in FIG. 7 at the time of mounting the component on the board 44.
  • a fifth turning position is a parts receiving position for receiving parts from a bulk feeder described later.
  • the removal of the component from the tape feeder 50 by the suction nozzle 90 and the mounting of the component taken out from the tape feeder 50 and the bulk feeder to the substrate 44 are both performed at the component mounting position, and the component mounting position is also the component receiving mounting position. is there.
  • the spring 122, the roller 124, and the cam 126 are not shown.
  • the compression coil spring 122 is a kind of spring as an elastic member which is a kind of urging device. The same applies to the other coil springs described below.
  • the head main body 98 is provided with a nozzle rotation driving device 140, and the nozzle holder 120 is rotated around its axis to rotate the suction nozzle 90.
  • the nozzle rotation driving device 140 uses an electric motor 142 as a driving source. The rotation of the electric motor 142 is transmitted to the nozzle holder 120 through gears 144, 147, and 148 common to the 12 nozzle holders 120 and the 12 nozzle holders 120, as shown in FIG. 6. All of the twelve suction nozzles 90 are rotated all at once.
  • nozzle lifting devices 150 and 152 which are nozzle advancing and retracting devices, are provided at portions corresponding to the component mounting position and the component receiving position of the head main body 98, respectively.
  • the nozzle lifting device 150 at the component mounting position includes a lifting member 154, a feed screw mechanism 156, and an electric motor 158 as shown in FIG.
  • the feed screw mechanism 156 includes a feed screw 160 and a nut 162.
  • the elevating member 154 is fixed to the nut 162, and as shown in FIG.
  • a roller 164 which is a rotational engagement member, is attached to the elevating member 154 on the rotor 92 side so as to be rotatable about an axis perpendicular to the rotation axis of the rotor 92. And constitutes an engaging portion.
  • the nozzle lifting device 150 is a device configured to forcibly lower the suction nozzle 90 but to allow the suction nozzle 90 to rise.
  • the nozzle lifting device 152 at the component receiving position is configured in the same manner as the nozzle lifting device 150.
  • a roller (not shown) is rotatably attached to the elevating member 172 to constitute an engaging portion.
  • the nozzle lifting / lowering device may be a device that forcibly moves the suction nozzle 90 in both rising and lowering.
  • a component imaging device 190 is provided at the component imaging position.
  • the camera 192 of the component imaging device 190 images a component taken out from the tape feeder 50 or the following bulk feeder by the suction nozzle 90 via a reflection device (not shown).
  • a bulk feeder 200 which is a kind of component feeder is provided at a portion corresponding to the component receiving position of the head main body 98 and is moved together with the suction nozzle 90 and the like by the mounting head moving device 28.
  • the component supply device 24 is a mounting machine main body side component supply device fixed to the base 52 of the module main body 18, and the tape feeder 50 constituting the component supply device 24 is a mounting machine main body side feeder.
  • the bulk feeder 200 is a head-side feeder provided in the mounting head 26, and these constitute a component supply device of the mounting module 10. As shown in FIGS. 8 and 9, the bulk feeder 200 includes a base 208, a component case 210, and a component feeder 212.
  • the component case 210 is provided with a storage chamber 214, a guide groove 216, a guide passage 218, and a recess 220.
  • a large number of components 222 are stored in the storage chamber 214 as bulk components in a bulk state.
  • a leadless electronic circuit component having no lead wire is accommodated, and for example, a component (chip component) having an electrode made of a magnetic material such as a capacitor or a resistor is accommodated.
  • the component feeding device 212 includes a bulk component driving device 230 shown in FIG.
  • the bulk component driving device 230 is provided in the head main body 98 and includes a rotating disk 234 and a rotating disk driving device 236.
  • the turntable 234 is accommodated in the concave portion 220 of the component case 210, and a plurality of, for example, three or more permanent magnets 238 are held on the side surfaces thereof.
  • the turntable driving device 236 uses an electric motor 240 as a drive source, and the rotation is transmitted to the turntable 234 by gears 242, 244, and 246, and the turntable 234 is rotated at an arbitrary angle in both forward and reverse directions.
  • the component 222 in the accommodation chamber 214 is attracted by the permanent magnet 238 and moved from the bottom to the top, and a part thereof is fitted into the guide groove 216 and enters the guide passage 218 from the guide groove 216 and is aligned in a line. Move in the state.
  • the component 222 eventually enters the guide passage 248 (see FIG. 5) provided in the base 208 and moves to the component supply unit 250 (see FIG. 5).
  • the guide passage 248 extends from the part case 210 to a position located below the suction nozzle 90 located at the part receiving position, and this part constitutes the part supply unit 250.
  • the air in the guide passage 248 is sucked by an air suction device (not shown), and the movement of the component 222 to the component supply unit 250 is promoted.
  • the movement of the component 222 is stopped by a stopper (not shown) provided on the base 208, and the leading component 222 is positioned on the component supply unit 250.
  • the component case 210 constitutes a component accommodating portion
  • the guide groove 216, the guide passages 218 and 248, the bulk component driving device 230, and the air suction device constitute the component feeding device 212, and the components in the component accommodating portion.
  • the component feeding unit is configured to feed the components to the component supply unit in a line along the guide path.
  • the nozzle holding portion 96 of the rotor 92 is provided with a control valve device 280 corresponding to each of the twelve nozzle holders 120 as shown in FIG. 4, and supplies positive pressure and negative pressure to the suction nozzle 90. And control.
  • the control valve device 280 is constituted by a spool valve, and the valve spool 282 is connected to the rotation axis of the rotor 92 in the spool hole 284 formed in the nozzle holding portion 96 as schematically shown in FIG. It is fitted so as to be movable in parallel directions.
  • the small-diameter switching portion 285 of the valve spool 282 is communicated with the suction nozzle 90 through a passage 286 formed in the nozzle holding portion 96 and a passage 288 formed in the nozzle holder 120.
  • the control valve device 280 is shown in FIG. 6 in a state where the suction nozzle 90 can communicate with the positive pressure source 290 and a negative pressure that prevents the suction nozzle 90 from communicating with the negative pressure source 292.
  • the control valve device 280 constitutes a negative pressure control valve and a positive pressure control valve.
  • the negative pressure control valve and the positive pressure control valve are integrally formed. Note that the negative pressure control valve and the positive pressure control valve may be provided separately.
  • a central hole 300 having the axis as the center line is formed in the rotor 92.
  • the center hole 300 has one end opened on the upper surface of the shaft portion 94 and the other end formed as a bottomed hole reaching the inside of the nozzle holding portion 96, and the support shaft 302 is disposed concentrically inside.
  • the upper end of the support shaft 302 is fixed to the head main body 98, and bearings 304 and 306 are provided between the upper and lower ends and the rotor 92 to support the rotor 92, but the support shaft 302 rotates the rotor 92. Does not rotate regardless.
  • a communication control unit 310 having a diameter to be fitted is integrally provided.
  • an annular passage 312 is formed in the central hole 300 above the communication control unit 310, and is below the communication control unit 310 and between the support shaft 302 and the bottom surface of the central hole 300.
  • a communication chamber 314 is formed.
  • the passage 312 is connected to the positive pressure source 290 by a port 320 formed in the shaft portion 94, an annular passage 322 provided in the head main body 98, a passage 324 communicated with the passage 322, and the like.
  • the communication chamber 314 is communicated with the negative pressure source 292 by a passage 330 formed in the shaft portion 94 and a passage 332 formed in the head main body 98.
  • a radial passage 350 is formed to constitute a first radial passage.
  • the radial passage 350 is referred to as a first radial passage 350.
  • Each of these twelve first radial passages 350 has a circular cross-sectional shape, is orthogonal to each of the twelve spool holes 284, and moves to twelve positions corresponding to each of the twelve suction nozzles 90. It is extended at angular intervals.
  • the twelve first radial passages 350 are respectively connected to the suction nozzle 90 through the switching unit 285, the passages 286, and 288 when the control valve device 280 provided for the corresponding suction nozzle 90 is brought into a state in which the positive pressure source can communicate. To communicate with.
  • a plurality of radial passages 352 are formed in a state extending radially from the communication chamber 314 as shown in FIG. 6, and in this embodiment, 12 radial passages 352 are formed as shown in FIG.
  • Each of the passages 352 constitutes a second radial passage.
  • the radial passage 352 is referred to as a second radial passage 352.
  • Each of the twelve second radial passages 352 has a circular cross-sectional shape, is formed at a portion below the first radial passage 350 and separated in a direction parallel to the rotation axis of the rotor 92, respectively.
  • the twelve spool holes 284 are orthogonal to each other, and are extended from the central portion of the rotor 92 to positions corresponding to the twelve suction nozzles 90 at equal angular intervals.
  • the twelve second radial passages 352 are communicated with the negative pressure source 292 via the communication chamber 314 regardless of the rotational position of the rotor 92.
  • the communication chamber 314 and the passage 330 constitute a negative pressure source communication passage.
  • the twelve second radial passages 352 are respectively connected to the suction nozzle 90 through the switching unit 285, the passages 286, and 288 when the control valve device 280 provided for the corresponding suction nozzle 90 is brought into a negative pressure source communication state. To communicate with.
  • a notch 360 is formed that is not included in the axis of the support shaft 302 and is notched in a plane parallel to the axis, and has an arcuate cross-sectional shape that opens to the outer peripheral surface of the communication control unit 310.
  • the dimension of the notch 360 in the direction parallel to the axial direction of the communication control unit 310 is larger than the diameter of the first radial passage 350.
  • the notch 360 is communicated with the passage 312 (see FIG.
  • the notch 360 is communicated with the positive pressure source 290 by the passage 312, the port 320, and the passages 322 and 324.
  • the passage 312 has an annular shape, and the notch 360 communicates with the positive pressure source 290 regardless of the rotational position of the rotor 92.
  • the passage 312 constitutes a positive pressure source communication passage.
  • the positive pressure source communication path and the negative pressure source communication path configured by the communication chamber 314 and the path 330 are arranged so that the rotation axis of the rotor 92 is connected to the first radial path 350 and the second radial path 352, respectively.
  • the positive pressure source communication path extends upward and the negative pressure source communication path extends downward. Therefore, the rotor can have a smaller diameter compared to the case where the two communication paths are provided side by side in a direction orthogonal to the rotation axis of the rotor. Further, the connection between the positive pressure source communication path and the positive pressure source 290 and the connection between the negative pressure source communication path and the negative pressure source 292 can be performed at different positions, and the configuration of the mounting head 26 becomes complicated. Can be avoided.
  • the rotor 92 rotates with respect to the communication control unit 310 provided on the support shaft 302 and fixed to the head body 98, and the twelve first radial passages 350 rotate with respect to the notch 360. Therefore, only the first radial passage 350 that is located at a position corresponding to the cutout portion 360 among the twelve first radial passages 350 communicates with the cutout portion 360 and is removed from the cutout portion 360. 350 does not communicate with the notch 360.
  • the notch 360 is formed as a notch having an arcuate cross-sectional shape defined by a chord and a circumference corresponding to a central angle of 120 ° of the rotor 92.
  • the opening on the center side of the rotor 92 of the first radial passage 350 can entirely face the notch 360, and in a state where the rotation of the rotor 92 is stopped at the position shown in FIG.
  • One radial passage 350 corresponding to the suction nozzle 90 and one first radial passage 350 on both sides thereof are fully opened, and one first radial passage 350 located on both sides thereof is further opened.
  • the opening on the rotor center side is half closed by the communication control unit 310.
  • the first radial passage 350 corresponding to the suction nozzle 90 in the component mounting position and the first radial passages 350 on both sides thereof are fully opened simply refers to the first radial passages.
  • the opening on the rotor center side of the passage 350 is not fully opened. For example, if the rotor 92 is rotated by a small angle from the position shown in FIG. 10, the first radial passage 350 in which the opening on the rotor center side is in a half-open state in FIG.
  • a partial cylindrical surface (a part of the cylindrical surface) that defines the opening edge and a bottom surface of the notch portion 360 (a plane that includes the chord and is parallel to the center line of the rotor 92) that define the opening edge. Since they are close to each other and the angle formed by these two surfaces is small, the flow of air flowing from the notch 360 to the first radial passage 350 is reduced. In this state, the first radial passage 350 is not fully opened. In the state shown in FIG. 10, one first radial passage 350 corresponding to the suction nozzle 90 in the component mounting position and one on both sides thereof.
  • the partial cylindrical surface that defines the opening edge of the rotor center side opening of the first radial passages 350 and the bottom surface of the notch portion 360 are sufficiently separated from each other. It is assumed that when the flow of air flowing to the first radial passage 350 is not restricted, the first radial passage 350 is fully opened.
  • the notch portion 360 For the purpose of forming the notch portion 360, at least one of the plurality of suction nozzles 90 is positioned at the component mounting position, and at least one of them is positioned upstream of the one in the rotational direction of the rotor 92. It is desirable that the notch portion 360 is provided in a state in which the plurality of first radial passages 350 corresponding to the one or more suction nozzles 90 are fully opened. The first radial passage 350 corresponding to the suction nozzle 90 at the component mounting position should be fully opened for the purpose of forming the notch 360, but more upstream than the one in the rotational direction of the rotor 92.
  • the first radial passage 350 corresponding to the one or more suction nozzles 90 located on the side is also fully opened regardless of the rotational speed of the rotor 92, so that the control valve device 280 communicates with the positive pressure source. This is because it is desirable that a positive pressure is already supplied to the first radial passage 350 at a sufficient pressure at the time when it is allowed.
  • the portion where the notch 360 of the communication control unit 310 is not formed is a portion that plays a role of closing the first radial passage 350, it is referred to as a blocking portion 396.
  • the first radial passage 350 corresponding to one suction nozzle 90 located at the component receiving position should be fully closed when the rotor 92 is stopped. It is desirable that the one or more first radial passages 350 corresponding to the one or more suction nozzles 90 positioned on the upstream side in the rotation direction of the rotor 92 than the one are also fully closed.
  • the suction nozzle 90 is already completely at atmospheric pressure at the time when the control valve device 280 is allowed to communicate with the negative pressure source. This is because it is desirable that the suction nozzle 90 has a sufficient negative pressure as soon as the 280 is in a state where the negative pressure source can be communicated.
  • the notch portion 360 and the closed portion 396 may be provided in a state satisfying the above conditions, and the rotor center side opening of the first radial passage 350 other than the above may be either open or closed. Therefore, in the present embodiment, from the viewpoint of ease of forming the notch portion 360 by machining, as described above, the rotor 92 is stopped at the position shown in FIG. The center of 120 ° of the rotor 92 is set so that one first radial passage 350 corresponding to the suction nozzle 90 in the component mounting position and one first radial passage 350 on each side thereof are fully opened.
  • One of the first radial passages having an arcuate cross-sectional shape defined by a chord and a circumference corresponding to a corner and having a closing portion 396 corresponding to the suction nozzle 90 in the component receiving position.
  • a first radial passage 350 corresponding to the nozzle 90 is of being assumed to be fully closed. Therefore, if the formation state of the first radial passage 350 in the rotor 92 changes, the formation state of the notch 360 should also be changed.
  • Valve switching devices 370 and 372 are provided at portions corresponding to the component mounting position and the component receiving position of the head main body 98, respectively.
  • the valve switching device 370 provided at the component mounting position includes a switching member 374 and a switching member driving device 376.
  • the switching member driving device 376 uses an electric motor 378 (see FIG. 13) as a driving source, and rotates the switching member 374 in both forward and reverse directions about an axis perpendicular to the rotation axis of the rotor 92.
  • the valve switching device 372 provided in the component receiving position includes a switching member 390 and a switching member driving device 392 as shown in FIG.
  • the switching member driving device 392 includes an air cylinder 394 (see FIG. 13) which is a kind of fluid pressure actuator, and moves the switching member 390 up and down.
  • a roller (not shown) is attached to the switching member 390 so as to be rotatable about an axis orthogonal to the rotation axis of the rotor 92 to form an engaging portion, engages with the upper surface of the engaged portion 384, and the valve spool 282. Press down.
  • the head main body 98 is provided with a mounting head control device 400 (see FIG. 13).
  • the mounting head control device 400 is mainly composed of a mounting head control computer 402.
  • the mounting head control device 400 is connected to a module control computer 404 constituting the main body of the module control device 34, and constitutes a component mounting control device together with the module control device 34.
  • the mounting head control device 400 controls the electric motor 106 and the like constituted by a servo motor with an encoder, and the mounting head control computer 402 includes each encoder 406 such as the electric motor 106 as representatively shown. It is connected.
  • the module control device 34 controls drive sources and the like of various devices constituting the mounting module 10, such as the linear motor 64, via the drive circuit 420.
  • the input / output interface of the module control computer 404 is provided in an image processing computer 430 that processes data obtained by imaging of the reference mark imaging device 30 and the component imaging device 32, an electric motor 76 of the X-axis slide moving device 74, and the like.
  • An encoder 432 (one representative is shown in FIG. 13), a mounting head control computer 402, and the like are connected.
  • the imaging data of the component imaging device 190 of the mounting head 26 is sent to the image processing computer 430 for processing, and necessary data is sent to the mounting head control computer 402.
  • the RAM of the module control computer 404 stores various programs and data for mounting components on the board 44.
  • the suction nozzle 90 takes out the component 222 from the bulk feeder 200 and mounts it on one substrate 44 as one aspect of mounting the component on the substrate 44.
  • the twelve suction nozzles 90 are sequentially rotated to the component receiving position by the rotation of the rotor 92, and after receiving the component 222 from the bulk feeder 200, the image is captured by the component imaging device 190 at the component imaging position, and is rotated to the component mounting position.
  • the component 222 is mounted on the substrate 44.
  • the holding position error of the component 222 by the suction nozzle 90 and the position error of the component mounting position of the substrate 44 obtained by imaging the reference mark are corrected.
  • the bulk feeder 200 moves together with the suction nozzle 90 to supply the component 222, and the mounting head 26 is moved relative to the circuit board holding device 22, while the 12 suction nozzles 90 are sequentially moved by the rotation of the rotor 92. It is moved to the swivel position, and the parts 222 are received, imaged, and mounted in parallel.
  • the control valve device 280 corresponding to the suction nozzle 90 is brought into a state where the negative pressure source can communicate, and as shown in FIG. Negative pressure is supplied.
  • the suction nozzle 90 reaches the eleventh turning position, the first radial passage 350 corresponding to the suction nozzle 90 is brought into a half-open state by the notch 360, and the positive pressure with the suction nozzle 90 is indicated by a thick black line in FIG. Communication with the source 290 is initiated.
  • control valve device 280 corresponding to the suction nozzle 90 is in a state capable of communicating with the negative pressure source, no positive pressure is supplied to the suction nozzle 90, and the suction nozzle 90 is kept in a state of holding the component 222. It is.
  • the first radial passage 350 corresponding to the suction nozzle 90 stopped at the twelfth turning position is fully opened, and the first radial passage 350 is supplied with a sufficient positive pressure. Since the corresponding control valve device 280 can communicate with the negative pressure source, no positive pressure is supplied to the suction nozzle 90.
  • the engaged portion 168 of the nozzle holder 120 is long in the turning direction of the suction nozzle 90, and the lifting member 154 of the nozzle lifting device 150 is lowered before the suction nozzle 90 reaches the component mounting position. Then, it is engaged with the engaged portion 168, and the suction nozzle 90 is lowered in parallel with the turning.
  • the elevating member 154 is engaged with the engaged portion 168 in the roller 164, and the rotation of the roller 164 allows the suction nozzle 90 to turn.
  • the valve switching device 370 is operated, the switching member 374 pushes up the valve spool 282, and switches the control valve device 280 from the negative pressure source communicable state to the positive pressure source communicable state.
  • the suction nozzle 90 is disconnected from the negative pressure source 292 and communicated with the positive pressure source 290, and the negative pressure is positively extinguished by the supply of the positive pressure, so that the component 222 is quickly released and the substrate 44 is released. It is attached to.
  • the first radial passage 350 corresponding to the suction nozzle 90 starts to communicate with the notch 360, and the twelfth turning
  • the first radial passage 350 is fully opened, and when the suction nozzle 90 reaches the component mounting position, the pressure in the first radial passage 350 is sufficiently positive, and the notch 360 is
  • the plurality of first radial passages 350 can be simultaneously communicated with the positive pressure source 290, and can be easily formed by machining as described above.
  • the notch 360 is in a state in which the three first radial passages 350 corresponding to the suction nozzles 90 stopped at the three swiveling positions around the component mounting position are in a fully opened state.
  • an angle region slightly wider than the stop position of the three first radial passages 350 is set as a first set angle region in which the first radial passage 350 is fully opened.
  • the engaged portion 384 of the valve spool 282 is long in the turning direction of the valve spool 282, and the switching member 374 is engaged with the valve spool 282 in the roller, and the valve is engaged and rotated with the engaged portion 384 of the roller.
  • the spool 282 can be pushed up while turning together with the suction nozzle 90. After the components are mounted, the suction nozzle 90 is raised and turned, and moved to the component receiving position. Also in this case, the suction nozzle 90 is raised and turned in parallel. After the control valve device 280 is switched, the switching member 374 is returned to the position where the valve control device 280 corresponding to the suction nozzle 90 that reaches the component mounting position next is switched.
  • the suction nozzle 90 turns from the third turning position to the fourth turning position, as shown in FIG. 14, the first radial passage 350 corresponding to the suction nozzle 90 comes off from the notch 360, and the positive pressure source 290. Communication with is interrupted. Thereby, the control valve device 280 is in a state where the positive pressure source can be communicated, but the communication between the suction nozzle 90 and the positive pressure source 290 is blocked, the pressure inside the suction nozzle 90 is lowered, and eventually the atmospheric pressure is reached. Become.
  • the suction nozzle 90 is lowered in parallel with the turning from the fourth turning position to the parts receiving position in the same manner as when the parts are mounted, and the control valve device 280 is moved to the positive pressure source by the valve switching device 372 in parallel with the lowering.
  • the communication is switched from the communicable state to the negative pressure source communicable state.
  • the switching member 390 pushes down the valve spool 282. After the suction nozzle 90 stops at the third turning position, the communication with the positive pressure source 290 is cut off and the internal pressure is reduced to the atmospheric pressure, so the control valve device 280 is switched to a state where the negative pressure source can be communicated.
  • the compressed air is blown from the suction nozzle 90 and the component 222 supplied by the bulk feeder 200 is not blown away.
  • Communication between the suction nozzle 90 and the positive pressure source 290 is cut off when the suction nozzle 90 passes two swivel positions upstream of the component receiving position in the rotor rotation direction, and is controlled at the component receiving position.
  • the valve device 280 is switched, the pressure in the suction nozzle 90 is sufficiently reduced. That is, in the present embodiment, one first radial passage 350 corresponding to the suction nozzle 90 stopped at the component receiving position, and the suction nozzle 90 stopped at the fourth turning position upstream in the rotor rotation direction therefrom.
  • the first radial passage 350 corresponding to the first radial passage 350 is fully closed by the closing portion 396, and as is apparent from FIG. 14, the first radial passage 350 corresponding to the suction nozzle 90 stopped at the tenth turning position. Since the passage 350 is kept in a fully closed state, an angle region slightly wider than that between the first radial passages 350 corresponding to the suction nozzles 90 stopped at the fourth turning position and the tenth turning position, respectively.
  • the first radial passage 350 is a second set angle region in which the radial passage 350 is fully closed.
  • the support shaft 302 and the head body 98 constitute a non-rotating part
  • the communication control part 310 and the passage 312 constitute a nozzle / positive pressure source communication / blocking part. Yes.
  • the suction nozzle 90 is communicated with the negative pressure source 292 and supplied with negative pressure, and adsorbs the component 222.
  • the suction nozzle 90 is swung in parallel with the ascent, and the component 222 is taken out of the bulk feeder 200 and moved to the next swiveling position.
  • the raising / lowering member 172 of the nozzle raising / lowering device 152 engages with the engaged portion 168 of the nozzle holder 120 in the roller, and allows the suction nozzle 90 to turn by the rotation of the roller.
  • the switching member 390 of the valve switching device 372 is engaged with the valve spool 282 by a roller, and the valve spool 282 can be pushed down while turning together with the suction nozzle 90 by the rotation of the roller. After the control valve device 280 is switched, the switching member 390 is returned to the position where the control valve device 280 corresponding to the suction nozzle 90 that reaches the component receiving position next is switched.
  • the receiving and mounting of the component 222 are performed in parallel, and the control valve device 280 is switched in parallel with the lowering of the suction nozzle 90, thereby obtaining a high mounting efficiency.
  • the mounting efficiency can be improved by rotating the suction nozzle 90 and raising / lowering in parallel in the vicinity of the component receiving position.
  • a valve switching device 372 for switching the control valve device 280 at the time of receiving a component is provided at a portion corresponding to the component receiving position of the head main body 98, and the suction nozzle 90 is swung and raised and lowered.
  • the control valve device 280 is switched when the suction nozzle 90 approaches the bulk feeder 200.
  • the suction nozzle 90 can be swung to approach the bulk feeder 200 and the control valve device 280 can be switched, which shortens the time required to receive the parts and improves the mounting efficiency. Can be further improved. Also, the mounting efficiency is improved by turning the suction nozzle 90 and raising and lowering in parallel in the vicinity of the component mounting position.
  • Rotary type mounting head 28 Mounting head moving device 34: Module control device 90: Adsorption nozzle 92: Rotor 98: Head main body 104: Rotor rotation device 150, 152: Nozzle lifting device 200: Bulk feeder 280: Control valve device 300 : Central hole 302: Support shaft 310: Communication control unit 350: First radial passage 352: Second radial passage 360: Notch portion 396: Blocking portion

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PCT/JP2013/056179 2013-03-06 2013-03-06 電子回路部品装着機 WO2014136231A1 (ja)

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PCT/JP2013/056179 WO2014136231A1 (ja) 2013-03-06 2013-03-06 電子回路部品装着機
CN201380074241.4A CN105027698B (zh) 2013-03-06 2013-03-06 电子电路元件安装机
EP13876881.7A EP2966951B1 (de) 2013-03-06 2013-03-06 Komponentenmontagesystem für elektronische schaltungen
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WO2017126031A1 (ja) * 2016-01-19 2017-07-27 富士機械製造株式会社 部品実装機
WO2017158712A1 (ja) * 2016-03-15 2017-09-21 富士機械製造株式会社 実装ヘッドユニット及び実装装置
WO2018179076A1 (ja) * 2017-03-28 2018-10-04 株式会社Ｆｕｊｉ 部品実装機
JP2018174319A (ja) * 2017-03-30 2018-11-08 ハンファ精密機械株式会社 部品保持ヘッド
CN116583040A (zh) * 2023-06-05 2023-08-11 浙江华企正邦自动化科技有限公司 一种转盘式Mini LED贴片机

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CN106061227B (zh) * 2015-04-10 2020-08-14 韩华精密机械株式会社 部件支撑头及利用此的部件拾取贴装方法
WO2017126031A1 (ja) * 2016-01-19 2017-07-27 富士機械製造株式会社 部品実装機
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CN116583040B (zh) * 2023-06-05 2024-05-31 浙江华企正邦自动化科技有限公司 一种转盘式Mini LED贴片机

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EP2966951A4 (de) 2016-05-04
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CN105027698A (zh) 2015-11-04
JPWO2014136231A1 (ja) 2017-02-09
JP6028084B2 (ja) 2016-11-16

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